@JGoldman10,
If you didn't know about the LGBT community before 2008, then that is on you. Gay marriage was an emerging right in the early 2000s, during Bush's presidency when Massachusetts legalized gay marriage and California banned it.
Castro Street in San Francisco, Greenwich Village in New York City, and West Hollywood have been major gay neighborhoods for years. Gay rights activism became more prominent in the 1970s, after the Stonewall riots of 1969.
Homophobia was still pretty rampant for a long time, either in a subtle or blatant manner. I'm currently reading "And The Band Played On" about the AIDS crisis, and apparently the mainstream press at first did not report on the growing AIDS crisis, which had already killed hundreds of gay men. They only started reporting the crisis in 1982, when heterosexual people started getting sick.